Our first offensive for the pacific war the battle in
Operation Husky, the invasion of Sicily.
The American Army first offensive action was in North Africa. The US Navy first offensive move was to send submarines out against the Japanese Navy.
The Japanese attacked Pearl harbor and that allowed US to join World war two and get revenge
Germany
Laser guns and magic
The most aggressive and offensive minded general in the US Civil War was General US Grant. He was even more offensive minded than General Lee. The one notable exception was the first day of fighting at the Battle of Shiloh. On day two of that battle he resumed the offensive.
World War 2
The first US draft was the US Civil War (1861-1865); the last US draft was the Vietnam War (1961-1975).
Europe .
US Marines landed on Guadalcanal in the Solomon Islands of the South Pacific on August 7, 1942. This is generally regarded as the first offensive move by the US during the war. Up to this time, the US had been on the defensive.
The first official battle of World War II involving overt US military presence was the Battle of Pearl Harbor.
No, after World War 2, before the Korean War